Komatsu PC78UU-6, PC78US-6 Hydraulic Excavator Shop Manual SEBM025118

Description

• Model List:
  • PC78UU-6 Hydraulic Excavator
  • PC78US-6 Hydraulic Excavator

• 1. COVER
• 2. CONTENTS
• 3. GENERAL
• 3.1. SPECIFICATION DIMENSIONS DRAWING
• 3.2. WORKING RANGE DRAWING
• 3.3. SPECIFICATIONS
• 3.4. WEIGHT TABLE
• 3.5. LIST OF LUBRICANTS AND COOLANT
• 4. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
• 4.2. COOLING SYSTEM
• 4.3. POWER TRAIN SYSTEM
• 4.4. SWING CIRCLE
• 4.5. SWING MACHINERY
• 4.6. TRACK FRAME AND IDLER CUSHION
• 4.7. ARRANGEMENT OF HYDRAULIC COMPONENTS
• 4.8. HYDRAULIC TANK AND OIL FILTER
• 4.9. CENTER SWIVEL JOINT
• 4.10. TRAVEL MOTOR
• 4.11. WORK EQUIPMENT CYLINDER
• 4.12. SOLENOID VALVE
• 4.13. MULTICONTROL VALVE
• 4.14. ACCUMULATOR FOR BRAKER
• 4.15. HYDRAULIC PUMP
• 4.16. CONTROL VALVE
• 4.17. CLSS
• 4.18. SWING MOTOR
• 4.19. WORK EQUIPMENT AND SWING PPC VALVE
• 4.20. TRAVEL PPC VALVE
• 4.21. OFFSET PPC VALVE (PC78UU6)ATTACHMENT PPC VALVE (PC78US6)BLADE PPC VALVE (PC78UU,PC78US6)
• 4.22. WORK EQUIPMENT
• 4.23. DIMENSIONS OF EACH PART OF WORK EQUIPMENT
• 4.24. AIR CONDITIONER PIPING (OPTIONAL)
• 4.25. ELECTRIC CONTROL SYSTEM
• 4.26. SYSTEM COMPONENTS
• 4.27. MONITOR SYSTEM
• 4.28. SENSORS
• 5. TESTING AND ADJUSTING
• 5.1. STANDARD VALUE TABLE FOR ENGINE
• 5.2. STANDARD VALUE TABLE FOR CHASSIS
• 5.3. STANDARD VALUE TABLE FOR ELECTRIC PARTS
• 5.4. TESTING AND ADJUSTING
• 5.5. TROUBLESHOOTING
• 6. DISASSEMBLY AND ASSEMBLY
• 6.1. METHOD OF USING MANUAL
• 6.2. PRECAUTIONS WHEN CARRYING OUT OPERATION
• 6.3. SPECIAL TOOL LIST
• 6.4. COUNTERWEIGHT
• 6.5. ENGINE AND MAIN PUMP
• 6.6. ENGINE HOOD ASSEMBLY
• 6.7. HYDRAULIC OIL COOLER
• 6.8. RADIATOR
• 6.9. SWING MOTOR AND SWING MACHINERY
• 6.10. SWING MACHINERY
• 6.11. SWING MOTOR
• 6.12. CENTER SWIVEL JOINT
• 6.13. CONTROL VALVE
• 6.14. WORK EQUIPMENT PPC VALVE
• 6.15. TRAVEL PPC VALVE
• 6.16. HYDRAULIC TANK
• 6.17. FUEL TANK
• 6.18. CONTROLLER
• 6.19. MONITOR PANEL
• 6.20. AIR CONDITIONER UNIT
• 6.21. OPERATORS CAB GLASS (STUCK GLASS)
• 6.22. FRONT WINDOW
• 6.23. REVOLVING FRAME
• 6.24. SWING CIRCLE
• 6.25. OFFSET BRACKET
• 6.26. STEEL SHOE, RUBBER PAD SHOE, ROAD LINER
• 6.27. RUBBER SHOE
• 6.28. FINAL DRIVE AND TRAVEL MOTOR
• 6.29. TRAVEL MOTOR
• 6.30. HYDRAULIC CYLINDER
• 7. OTHER SPECIFICATIONS
• 7.1. PC78US6(FOR NORWAY EU)
• 7.2. CONTENTS
• 7.3. GENERAL
• 7.4. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
• 7.5. TROUBLESHOOTING
• 8. OTHERS
• 8.1. HYDRAULIC CIRCUIT DIAGRAM
• 8.2. ELECTRICAL CIRCUIT DIAGRAM